[Asterisk-Users] tdm (and x100p?) echo - fix is coming!

[Andrew Yager]

I'm excited.

At the moment we're using aggressive echo cancellation - which is nice, 
and works - but it would be great to not have to complete kill the 
other person's voice when speak.

Looking forward to trying it a bit later...

Andrew

_________________________
On 24/06/2004, at 11:54 AM, Isamar Maia wrote:

>
> Beside of problem of CallerID not working in several countries, what
> specially I still don't know if it's a X100P's limitation or Zap driver
> limitation, the major problem with this devices is no doubt the echo.
> If you guys can solve this with tdms and x100ps, it's gonna be a big
> step.
>
>
> On Wed, 23 Jun 2004, Rich Adamson wrote:
>
>> Good news!
>>
>> FYI, worked with Mark this afternoon to test changes needed to reduce
>> or eliminate echo involving pstn calls on the new tdm fxo card (bug
>> #1902).
>>
>> Three simple source code changes (testing-only at this point) resulted
>> in zero detectable echo on all incoming and outgoing tdm pstn calls,
>> even in the first second or two. I've not noticed any unusual side
>> effects at all. Since the changes were only to chan_zap.c, I'll have
>> to guess it will improve the historic x100p echo issues as well, and
>> probably other zap channels also.
>>
>> The changes were associated with the echo cancel routines, but as a
>> non-programmer, I'm not sure what these changes really do (other than
>> the end result).
>>
>> If these changes prove to be successfull, then Mark is going to make
>> them configurable options somewhere. Got'a love it.
>>
>> Rich
>>
>>
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